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The self-synchronization of spin torque oscillators is investigated experimentally by re-injecting its radiofrequency (rf) current after a certain delay time. We demonstrate that the emission power and the spectral linewidth are improved…

介观与纳米尺度物理 · 物理学 2015-09-21 S. Tsunegi , E. Grimaldi , R. Lebrun , H. Kubota , A. S. Jenkins , K. Yakushiji , A. Fukushima , P. Bortolotti , J. Grollier , S. Yuasa , V. Cros

The Cornell Electron-positron Storage Ring (CESR) has been converted from a High Energy Physics electron-positron collider to operate as a dedicated synchrotron light source for the Cornell High Energy Synchrotron Source (CHESS) and to…

The ability to identify the contents of a sealed container, without the need to extract a sample, is desirable in applications ranging from forensics to product quality control. One technique suited to this is inverse spatially offset Raman…

As the pre-injector of the LHC injector chain, the proton linac at CERN is required to provide a high-intensity (180mA) beam to the Proton Synchrotron Booster. The results of measurements at this intensity will be presented. Furthermore,…

加速器物理 · 物理学 2007-05-23 C. E. Hill , A. Lombardi , R. Scrivens , M. Vretenar , A. Feschenko , A. Liou

High-precision modeling of systems is one of the main areas of industrial data analysis. Models of systems, their digital twins, are used to predict their behavior under various conditions. We have developed several models of a storage…

机器学习 · 计算机科学 2025-04-08 Abdalaziz Rashid Al-Maeeni , Aziz Temirkhanov , Artem Ryzhikov , Mikhail Hushchyn

In the case of single-digit picosecond bunch length, synchrotron light sources produce intense coherent radiation up to the THz range. The reduction of the bunch length by lowering the momentum compaction factor (low-$\alpha$) gives rise to…

The Optically Segmented Single Volume Scatter Camera (OS-SVSC) aims to image neutron sources for non-proliferation applications using the kinematic reconstruction of elastic double-scatter events. Our prototype system consists of 64 EJ-204…

For any storage ring-based large-scale scientific facility, one of the most important performance parameters is the dynamic aperture (DA), which measures the motion stability of charged particles in a global manner. To date, long-term…

计算物理 · 物理学 2022-07-14 Jinyu Wan , Yi Jiao

At submicron manufacturing technology nodes process variations affect circuit performance significantly. This trend leads to a large timing margin and thus overdesign to maintain yield. To combat this pessimism, post-silicon clock tuning…

硬件体系结构 · 计算机科学 2017-05-16 Grace Li Zhang , Bing Li , Ulf Schlichtmann

We investigate the limits of photoemission yield in a high-gradient S-band radiofrequency photoinjector in the space-charge-dominated regime. Using an RF phase-scan technique, where the emitted charge is measured as a function of the…

We extend our work on a novel indoor positioning system (IPS) for autonomous mobile robots (AMRs) based on radar sensing of local, passive radar reflectors. Through the combination of simple reflectors and a single-channel frequency…

机器人学 · 计算机科学 2026-01-29 Sven Hinderer , Pascal Schlachter , Zhibin Yu , Xiaofeng Wu , Bin Yang

Large-scale key-value storage systems sacrifice consistency in the interest of dependability (i.e., partition tolerance and availability), as well as performance (i.e., latency). Such systems provide eventual consistency,which---to this…

分布式、并行与集群计算 · 计算机科学 2012-11-21 Muntasir Raihan Rahman , Wojciech Golab , Alvin AuYoung , Kimberly Keeton , Jay J. Wylie

Central frequency is a key parameter of storage rings. This paper presents the measurement of central frequency of the HLS-II storage ring using the sextupole modulation method. Firstly, the basis of central frequency measurement of the…

加速器物理 · 物理学 2016-02-23 Jiajun Zheng , Yongliang Yang , Baogen Sun , Fangfang Wu , Chaocai Cheng , Kai Tang

Detector characterization and instrumentation testing are often performed at cyclotron and synchrotron facilities, many of which were originally developed for medical applications in cancer therapy. For particle physics experiments…

In this work, an optimized method was implemented for attaining stable multibit operation with low energy consumption in a two-terminal memory element made from the following layers: Ag/Pt nanoparticles (NPs)/SiO2/TiN in a…

硬件体系结构 · 计算机科学 2024-06-21 G. Kleitsiotis , P. Bousoulas , S. D. Mantas , C. Tsioustas , I. A. Fyrigos , G. Sirakoulis , D. Tsoukalas

This paper presents the model-based design and evaluation of an instrument that estimates incident neutron direction using the kinematics of neutron scattering by hydrogen-1 nuclei in an organic scintillator. The instrument design uses a…

仪器与探测器 · 物理学 2017-12-13 Kyle Weinfurther , John Mattingly , Erik Brubaker , John Steele

This paper presents an analytical method for calculating the operational value of an energy storage device under multi-stage price uncertainties. Our solution calculates the storage value function from price distribution functions directly…

最优化与控制 · 数学 2024-03-29 Bolun Xu , Audun Botterud , Magnus Korpas

A high-granularity telescope system with a large sensitive area and low material budget has been developed for high-energy heavy ion beam tests. The telescope consists of nine layers of silicon microstrip detectors (SSDs), whose performance…

In this paper, we present an experimental setup to evaluate the performance of a radio frequency identification (RFID)-based integrated sensing and communication (ISAC) system. We focus on both the communication and sensing capabilities of…

信号处理 · 电气工程与系统科学 2025-03-04 Yu Zhang , Xiaoyu Shi , Tongyang Xu